780680358 has 48 divisors (see below), whose sum is σ = 1816248096. Its totient is φ = 241463040.

The previous prime is 780680333. The next prime is 780680359. The reversal of 780680358 is 853086087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (780680359) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3760 + ... + 39692.

It is an arithmetic number, because the mean of its divisors is an integer number (37838502).

Almost surely, 2^780680358 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 780680358, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (908124048).

780680358 is an abundant number, since it is smaller than the sum of its proper divisors (1035567738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

780680358 is a wasteful number, since it uses less digits than its factorization.

780680358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36029 (or 36026 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 780680358 is about 27940.6577946905. The cubic root of 780680358 is about 920.7839717981.

The spelling of 780680358 in words is "seven hundred eighty million, six hundred eighty thousand, three hundred fifty-eight".